'Apprehend' in the Bible

And He said, “Go, and tell this people:‘Keep on listening, but do not understand;Keep on looking, but do not comprehend.’

You have seen many things, but you do not observe them;Your ears are open, but no one hears.

be fully capable of comprehending with all the saints (God’s people) the width and length and height and depth of His love [fully experiencing that amazing, endless love];